Squamous cell carcinoma arising from mature cystic teratoma of the ovary: A case report.

Mature cystic teratoma of the ovary (MCTO) is a type of common disease in clinic. However, the malignant transformation of MCTO occurred rarely, with many unexplained questions. To the best of our knowledge, owing to the rarity of squamous cell carcinoma (SCC) in MCTO, even though there are some previous research works concerning about this rare disease, further exploration and discussion is still necessary to reveal unknown aspects. We present a case of pathologically confirmed SCC in MCTO in a 54-year-old female patient, who underwent surgery and subsequent adjuvant chemotherapy. After the treatment, she recovered well and was followed up until now. SCC in MCTO occurred rarely; clinicians should abandon habitual concepts and make targeted management individually.